STRENGTHS: Very crisp highs and strong midrange.
Excellent crossover phasing for perfect sound.
WEAKNESSES: Plastic cage, be careful mounting.
Check mounting depth.
REVIEW: Having excellent past experience with db series components I had my heart set on Polk audio speakers two ways for this tight install. When I listened to the mm series on display I was really amazed by the deep rich sounds comming from the midrange and the crispness of the highs.
MM521's do need a little time to break in because of the composite materials. When you first install them they have little bass but they will not distort. Crank them up when you set your amplifier and within a couple of hours of listening you will be amazed at these powerful little two ways.
Be careful mounting these speakers because the cage is made out of plastic. Make sure that all of your mounting hole line up perfect or you will crack the cage. Do not be alarmed however, the plastic cage is much more rigid then a standard metal cage and you will not be disappointed by the build quality.
Customer Rating: 4.00 (from 1 users)
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